<QP>
Notify me but don't automatically download or install them
If you select this option, Windows recognizes when you are online and uses
your Internet connection to search for downloads from the Windows Update Web
site or from the Microsoft Update Web site. An Automatic Updates icon and
message appear in the notification area of your taskbar when new updates are
available to download or to install.
• Click the icon or message to view the updates. If you do not want to
download a selected update, click to clear the check box next to that update
to decline it. Click Start Download to download the selected updates. The
Automatic Updates icon remains in the notification area of your taskbar
while the updates are being downloaded. You can point to the icon to view
the download status.
• When the download is complete, you receive another message in the
notification area stating that the updates are ready to install. Click the
Automatic Updates icon or the message, and then click Install to install the
updates.
</QP>
Source:
http://support.microsoft.com/kb/306525
Or just see
http://groups.google.com/group/microsoft.public.windowsxp.general/msg/4f02afee17557a30